William mubphy



(No Model.) 2 Sheets-Sheet 1.

W. MURPHY.

OGTAVE COUPLER FOR ORGANS.

No. 336,134. Patented Feb. 16, 1886.

WITWESSES' Attorney/ f (No Model.) .2 SheetsSheet 2.

W. MURPHY.

OGTAVE COUPLER FOR ORGANS.

No. 336,134. Patented Feb. 16, 1886.

lnlmlmi'inlluImImImIIuI I r" V; I [A JJISSL IS 1.7V VE'N TOR .dttorney .UNITED STATES PATENT OFFICE.

\VILLIAM MURPHY, OF ST. JOHN, NEW BRUNSWICK, CANADA.

OCTAVE-COUPLER FOR ORGANS.

SJECiFi'CATIODE forming part of Letters Patent No. 336,134, dated February 16,1886.

Application filed Septembl r .l, 18:5.

lowing is a specification, reference being had to the accompanying drawings.

My invention relates to an improvement in octave-couplers for organs; and it consists in the peculiar construction and combination of devices, that will be more fully set forth hereinafter, and particularly pointed out in the claims.

In the drawings, Figure 1 is a perspective view of parts of an organ-action embodying my improvements. Fig. 2 is a vertical sec tion taken in the direction of the length of the keys. Fig. 3 is a rear elevation. Figs. 4 and 5 are enlarged detail views of my improved form of hinge tojournal the tracker-rods t0 the hinged board. Fig. 6 is a diagram illustrating the movement of one of the tracker-pin rods out ofengagement with one of the key-buttons.

A represents a portion of the organ-case, and B is the key-frame of the same.

In the illustration enough only of an organ is shown to fully illustrate my improvements, as the manner of applying them will be readily understood by persons skilled in the art of organ-building.

G G designate the pitman-frames, in which the pitmen D work in perforations made for them. Each pitman D is provided near its lower end with a button, D. The upper ends of the pitmen D enter eyes in buttons D, secured to the under faces of the key-levers B. These buttons D" are prevented from turning on their pivots by small brace-wires D", entering the sides of the buttons 1) and the under faces of the key-levers E.

No claim is made herein to this construe tion of the buttons on the key-levers,.as it forms no part of this present invention, being claimed in Letters Patent of the United States No. 322,121, granted to me July 14, 1885.

F designates a hinged or pivoted (prefer-a bly diamondshaped) board, which is shown arranged in the rear of the pitman-frames in this instance. To the face of the board F Serial No. 176,097. (X0 model.)

farthest from the pitman frames 0 G the double tracker-pin rods H are secured in bearings H. The tracker-pin rods have the points of their arms H at their lower ends flattened,

and these flatten ed ends rest upon the buttons or collars D near the lower end of the trackerpins or pitmen D. The upper ends of the tracker-pin rods have horizontally-curved arms H", which extend over the upper pitmanboard and have their laterallycurved ends engage the under faces of the buttons D on the under faces of the key-levers, when the board F isvertical, as shown in solid lines in Figs. 2 and 6. When the board F is inclined toward the tracker-pins, in the position shown in dotted lines in the said figure, the curved upper ends of the tracker-pin rods are moved forwardly, as shown in dotted lines in Figs. 2 and 6, out of engagement with the buttons under the key-levers, and the latter can be played upon without affecting the tracker-pin rods. The upper edge of the board F is connected to a sliding arm, F which extends back in rear of the keys. The front side of the board F is beveled on its upper and lower edges, as at f, in order to enable said board to be inclined in the direction of the trackerpins, as before described, and the tracker-pin rods are journaled to this board by means of bearing-plates L and L, which are secured on the beveled edges of the boards by means of screws or rivets. These plates are formed of pieces of sheetbrass or other suitable ma terial, and the edges of these plates that project beyond the edges of the board are notched, as at a, leaving intervening tongues, b, which are inclined to correspond with the inclination of the tracker-pin rods, being at right angles thereto, and the outer ends of the tongues are bent rearwardly about threefourths around the tracker-pin rods to form bearings therefor. This manner of forming the bearings for the tracker-pin rods is advantageous over the mode in common practice ofjournaling said rods separately, being much cheaper and more secure and firm. The pivotal lug Z, for the attachment of the sliding arm, is formed with the bearing-plate L, and at the ends of the lower bearing-plate, L, are formed bearings Z, by means of which the board F is hinged or pivoted at its lower end to the organ-action, as at F. The inner sides of the bearings bare lined With felt bushing, as at d, to prevent metallic sounds. The

lower ends of the tracker-pins rest upon the Z formed with it to hinge or substantially as described.

3. The combination, in an organ-actiou. of the hinged or pivoted board F, the sliding pivot the board,

rod for operating said board, the tracker-pin rods, and the bearing-plates secured to the board, and having the tongues bent around the tracker-pin rods to form bearings therefor, one of said bearing-plates having the pivotal lugl for the attachment of the sliding rod,

substantially as described.

4. The bearing-plates having the tongues bent to form bearings for the tracker-pin rods, substantially as described.

5. The bearing-plates having the tongues bent to form bearings for the tracker-pin rods, and the'bushing in said bearings surrounding the tracker-pin rods to prevent metallic sounds from the latter, substantially as described.

In testimony that I claim the foregoing as my own I have hereto aflixed my signature in v presence of two witnesses. one of said bearing-plates having the bearings \VILLIAM MURPHY.

Witnesses:

0. GILLEsrIE, CHAS. A. MACDONALD. 

